Add methods to check if widgets are currently shown/expanded/visible or not

[bitcity]

I'm surprised there's no request for a function that tells if a tooltip (or popover) is visible or maybe I missed it in the issues. The closest I could find was this on Stackoverflow (these are workarounds and could break unexpectedly in a future update).

How about something like:

  Tooltip.prototype.isVisible = function (obj) {
    var self = ...
    if (self && self.$tip && self.$tip.is(':visible')) {
      return true;
    } else {
      return false;
    }

I understand that it isn't completely deterministic since the result could change due to an animation timeout or mouse event.

[cvrebert]

What's your use case?

[bitcity]

I'm frequently updating the tooltip title while it's visible to the user using data-original-title (unfortunately, another undocumented property). Whether the title changes or not, I call tooltip('show'), which results in flicker. Ideally I should call it only when (i) the title needs to be updated or (ii) the tooltip has been hidden due to loss of focus. The second scenario requires checking for tooltip visibility.

[peterblazejewicz]

for reference: quick solution:

$(selector).data('bs.tooltip') && $(selector).data('bs.tooltip').$tip.is(':visible');

[getub]

I find this more direct & short

$(selector).attr('aria-describedby').length != 0    

Between this and @peterblazejewicz 's solution which one's more robust and tolerant to future changes?

[Merg1255]

You should create a new report for any undocumented features you believe should be in there.

@mdo Could we have a formal way of checking visibility also for other elements? That could be consistent with the same function name on popover or tooltips.

[cvrebert]

It's more up to @fat since he's the JS plugin meister.
Adding a "is shown?" method to the widgets does sound reasonable to me, fwiw.
It'd probably get punted to v4 though.

[bitcity]

It'll be good to have an :animated selector (like this in jQuery) when we are talking about visibility.

[Merg1255]

Right. Should make it for v4. "is shown" seems nice.

[mdo]

Punting to v4.

[otr-tomek]

for bootstrap tooltips - thanks for @getub:

var $is_visible = $item.attr('aria-describedby') || false;
if (!$is_visible) {
     $item.tooltip('show');
}